Question

How many moles of solute would be needed to form two liters of a one molar

solution of sodium chloride?
​

Answer 1

2 moles of solute.

Step-by-step explanation:

Molarity is defined as number of moles of solute present in one litre of solution.

Hence one molar solution of NaCl means 1 mole of NaCl is present in 1 litre of solution.

Molarity =
`(Number of moles of solute)/(volume of solution in litres)`

For 1 litre of solution 1 mole of solute is required to make a one molar solution.

Hence for 2 litres of solution we require 2 moles of solute to keep it one molar.